Rewrite two more classes to new blink style.

third_party/WebKit/Source/platform/graphics/test/FakeGLES2Interface.h

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef FakeGLES2Interface_h
 #define FakeGLES2Interface_h
 
 #include "gpu/command_buffer/client/gles2_interface_stub.h"
 
 class FakeGLES2Interface : public gpu::gles2::GLES2InterfaceStub {
  public:
   // GLES2Interface implementation.
   GLenum GetGraphicsResetStatusKHR() override {
-    return m_contextLost ? GL_INVALID_OPERATION : GL_NO_ERROR;
+    return context_lost_ ? GL_INVALID_OPERATION : GL_NO_ERROR;
   }
 
   // Methods for tests.
-  void setIsContextLost(bool lost) { m_contextLost = lost; }
+  void SetIsContextLost(bool lost) { context_lost_ = lost; }
 
  private:
-  bool m_contextLost = false;
+  bool context_lost_ = false;
 };
 
 #endif  // FakeGLES2Interface_h